BibTeX

@ARTICLE{iumj18025,
    author = "S. Gudder",
     title = "Joint Distributions of Observables",
   journal = "Indiana Univ. Math. J.",
  fjournal = "Indiana University Mathematics Journal",
    volume = 18,
      year = 1969,
     issue = 4,
     pages = "325--335",
      issn = "0022-2518",
     coden = "IUMJAB",
   mrclass = "",
}

amsrefs

\bib{iumj18025}{article}{
     author = {Gudder, S.},
      title = {Joint Distributions of Observables},
    journal = {Indiana Univ. Math. J.},
     volume = {18},
       year = {1969},
     number = {4},
      pages = {325 \ndash 335},
}